Not to worry. When looking at a Panasonic Plasma and a couple LCDs playing the same movie, I liked the plasma better. the colours looked richer, and it didn't have that jittery look to it. the only thing I saw better than a plasma was a Samsung LED TV, which looked fecking amazing. But at $4499 for a 55", that won't be happening.
With Panasonic, it's either 46, 50, or 58. For my livingroom, I measured that I could do up to 58" based on where I would be sitting. But the cost might mean I get a 50", which is still plenty big based on where the couches are.